Phelps County on the map of Missouri as of 2025. Cities, roads, borders and directions in Phelps County of Missouri.

Phelps County is located in the central area of Missouri. This cool county is named after John S. Phelps (1814–1886), a politician, soldier during the American Civil War, and twenty-third Governor of Missouri. The county seat of Phelps County is Rolla. Formed in 1857, today Phelps County is home to 45 thousand residents. This map shows the borders of Phelps County as well as neighboring counties, including major highways and natural objecsts as of 2025. Zoom in or out of the map using the plus/minus panel. Move the center of this map by dragging it. Also check out the satellite map of Phelps County.